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He currently has a 7-6 record and a 2.62 ERA. He threw eight shutout innings Saturday night as the Reds beat the Rockies.

Cincinnati will get pitchers Brandon Finnegan, John Lamb and Cody Reed in the deal.

Finnegan played a key role in the Royals run to the World Series last year and has spent time with both the major and minor league clubs this season. Lamb was expected to compete for a starting job next season. Reed was a second-round pick in 2013 and has been with the team's AA team in Northwest Arkansas.

Finnegan tweeted a message to fans after the trade news was confirmed.

The Royals will also get cash considerations in the deal, the team announced in a press release.

Cueto, whose agent said was exciting to join the new team, tweeted a message to Reds fans Sunday afternoon.

Cueto, who said he planned to join the Royals on Tuesday, will join a rotation with Edinson Volquez, Danny Duffy, Jeremy Guthrie, Chris Young and Yordano Ventura.

It is unclear whether one of those pitchers will be moved to the bullpen, or whether the Royals will proceed with plans to send Ventura to Omaha. He had been destined for some time in AAA until pitcher Jason Vargas suffered a season-ending injury this week.

The Royals will go on the road Monday to open a series with the Cleveland Indians. Cueto will probably pitch his first game as a Royal against the Toronto Blue Jays.